STES: A Stream Cipher Based Low Cost Scheme for Securing Stored Data

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Provided by: Indian Statistical Institute
Topic: Data Management
Format: PDF
The problem of securing data present on USB memories and SD cards has not been adequately addressed in the cryptography literature. While the formal notion of a Tweakable Enciphering Scheme (TES) is well accepted as the proper primitive for secure data storage, the real challenge is to design a low cost TES which can perform at the data rates of the targeted memory devices. In this paper, the authors provide the first answer to this problem. Their solution, called STES, combines a stream cipher with a XOR universal hash function. The security of STES is rigorously analyzed in the usual manner of provable security approach.
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